Showing 1–19 of 19 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Charles A. Drake | Phillips Petroleum | 233 |
| 2 | John T. Blagg | Chevron | 9 |
| 3 | Charles A. Drake | — | 8 |
| 3 | Jimmie J. Straw | Phillips Petroleum | 8 |
| #5 | Brad Vanwinkle | Osborn | 4 |
| #5 | Brian Dunn | — | 4 |
| #7 | Donald E. Bishop | Bayotech | 3 |
| #8 | Omer D. Shearhart | Northrop | 2 |
| #8 | Todd M. Branstetter | Camco International | 2 |
| #8 | Walter E. Hudnall | — | 2 |
| #8 | Faber B. Jones | Phillips Petroleum | 2 |
| #8 | Billy G. Shearhart | — | 2 |
| #13 | Leo L. Gingerich | Phillips Petroleum | 1 |
| #13 | William B. Frauenberger | — | 1 |
| #13 | Steven P. Franke | — | 1 |
| #13 | Murphy D. Boughner | Amerada Hess | 1 |
| #13 | Johnnie R. Pierce | Phillips Petroleum | 1 |
| #13 | Lewis R. Arnold | — | 1 |
| #13 | Charles A. Brake | Phillips Petroleum | 1 |
Part of Oklahoma